A steel wire of length 50 meters is required to transmit a 10 kN tensile load. Determine the smallest diameter wire that can be used if the tensile stress must not exceed 150 MPa and the elongation of the wire must not exceed 25 mm. (Esteel = 210 GPa).

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.